Wireless Field Level Network (WFLN) Technical ... - Siemens

EXPSTATUS RXEXPTXTechnical Specification SheetDocument No. 149-944October 24, 2007Wireless Field Level Network (WFLN)WLAN0067R1Figure 1. Wireless Field Level Network.DescriptionThe Wireless Field Level Network (WFLN) is a FieldLevel Network (FLN) that communicates via radiofrequency links instead of a hard-wiredcommunications network (Figure 1). The WFLN utilizeswireless mesh technology to form a wireless meshnetwork.A wireless mesh network consists of a collection ofnodes that communicate to each other via wirelesslinks that do not need to be routed through a centralnode.A grid-like topology enables the signal to hop amongdifferent paths in order to circumvent obstructions as itseeks and ultimately finds its target device. Theseredundant communication paths enable a very highlevel of reliability. Because multiple signal paths exist,the network can adjust to potential communicationlink disruptions due to changes in the buildingenvironment.Siemens Building Technologies, Inc. Page 1 of 4

The self-forming, self-healing nature of the meshnetwork eliminates the need for maintenance as theenvironment changes.To implement the WFLN, a Field Level NetworkTransceiver (FLNX) is mounted at the FLN device anda Field Panel Transceiver (FPX) is mounted at the fieldpanel. Both must be powered by 24 Vac. Thetransceiver antenna can be mounted either directly orremotely. In cases where the radio transceiver ismounted in a metal enclosure, the remote mountantenna would be used. The transceivers are plenumrated for direct mount without an enclosure.Once installed and powered, the transceiversautomatically form the mesh network, and the WFLN’swireless mesh communication is virtually transparentto the system and end user.The WFLN also supports communications with theWireless TEC Room Temperature Sensor (WRTS).The WRTS can be bound to a specific TerminalEquipment Controller (TEC). Because the WRTSutilizes the mesh network, it can either communicatedirectly with the FLNX located at its TEC or throughother nearby FLNXs that will route the data to theappropriate TEC.Features• Supports communications with Wireless TECRoom Temperature Sensors (WRTSs).• Multiple FPXs (WFLNs) and hard-wired FLNdevices can reside on the same FLN cable.• Field selectable frequency/channel switch selectsone of 16 channels of operation in the 2.4 GHzfrequency band.• Field selectable network identification to allowmultiple WFLNs to operate in close proximity atthe same frequency/channel.• Direct mount or remote mount antennas.• LED to indicate power and communications.Figure 2. Field Level Network Transceiver (FLNX).Wireless Mesh Network• Self-forming for simple deployment.• Self-healing for high reliability.• Bi-directional routing for command and control.BenefitsFigure 3. Field Panel Transceiver (FPX).• Highly reliable even as the RF environmentchanges.• Provides simpler, faster, and easier installation ofFLNs.• Minimizes impact to facility and occupants duringinstallation in retrofit situations.• Can easily move FLN devices without needing toreroute network cable.• Can easily add FLN devices to an existing WFLN.• Eliminates reliance on old, unreliable, orincompatible wired infrastructures.• Allows staged migration for retrofit situations.Page 2 of 4Siemens Building Technologies, Inc.

SpecificationsGeneral Specifications (FLNX and FPX)Frequency16 selectable channels of operation in the 2.4 GHz international license free ISM band(IEEE 802.15.4 radio channels 11 through 26)2405 to 2480 MHz - 5 MHz channel spacingChannels are factory set to IEEE 802.15.4 Channel 26 (2480 MHz)Modulation O-QPSK Direct Sequence Spread Spectrum radio in accordance with the IEEE 802.15.4specificationAgency Listings UL 916CSACEAustralian C-TickComplies with FCC Part 15 Regulations (Low Power Unlicensed Transmitters)Certification Designed for ZigBee ®Environmental RoHS and WEEE CompliantComplianceRange Outdoor line of sight range of 350 ft (107 m)Typical indoor range of 25 to 100 ft (8 to 30 m)(actual range varies based on environmental conditions)Operating32° to 122°F (0° to 50°C)TemperatureOperating RelativeHumidity20% to 90% relative humidity (non-condensing)Dimensions L 4.5" × W 3.5" × D 1.35"(114 mm × 89 mm × 34 mm)Antenna6” (15 cm) beyond radio enclosurePower:Voltage24 Vac @ 50/60 Hz (19 to 32 Vac)RequirementPower1.2 VA (Nominal) at 24 VacConsumptionSystem SpecificationsMaximum number 32 devices (either hard-wired or wireless) total per field panel FLN portof FLN devicesCompatibility:Automation LevelPXC ModularModular Building Controller (MBC) – requires a PowerPCModular Equipment Controller (MEC) – Series 1000 with FLNsField LevelTerminal Equipment Controllers (TEC)Point Expansion ModulesDigital Energy MonitorVariable Speed DrivesOther third-party FLN devices (using P1 protocol)Siemens Building Technologies, Inc. Page 3 of 4

Ordering InformationDescriptionPart NumberField Level Network Transceiver (FLNX) 563-054Field Panel Transceiver (FPX) 563-055Direct Mount Antenna 563-007Remote Mount Antenna 563-008Pre-terminated Cable Kit (optional) 563-027Includes two 14 in. (36 cm) cables:– Power– CommunicationNOTE: Antennas are not included with the transceivers and must be ordered separately.Regions where this Product is SoldAustralia, Brazil, Canada, China, Europe, Hong Kong, Korea, Mexico, New Zealand, Singapore, Taiwan, US.Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes asdesign improvements are introduced. APOGEE and Insight are registered trademarks of Siemens Building Technologies, Inc. Other product orcompany names mentioned herein may be the trademarks of their respective owners. © 2007 Siemens Building Technologies, Inc.Siemens Building Technologies, Inc.1000 Deerfield ParkwayBuffalo Grove, IL 60089-4513Your feedback is important to us. If you havecomments about this document, please send them tosbt_technical.editor.us.sbt@siemens.comDocument No. 149-944Country of Origin: USPage 4 of 4